そのうちの半分はって英語でなんて言うの？

「I've gone overseas ten times, but half of those trips were for work.」

10回 = ten times 以上 = more than, over 行ったこと went (to), have been (to) が = but, however そのうち半分 = half of (those, them), half 仕事 = work 海外 = abroad, overseas I've been overseas more than 10 times, but half of those (times) were for work. または I've gone abroad over 10 times, however, half were on business.